From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=202.108.3.24 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1794441268; b=yrzX+OGB9U/yN8lNgr82POWeTq/9zzidH8/Al3DKQWY5Y6MoNij6lrda9nY6zlnnPkSb 2wYGReoVYWvZSg+3vcW50inGcLK43o+pMicsElyOJjY+gDqGF3cQoJCZAGU95NqYqhUzA g/9FJanfZ96LKLP3FBo5PYAMjXXCxf81b9jBNcP0ZhlwHzKF3kDB+MUNV6d3mv1/ftxQB aVYFKIpWXrQBSG6eTpRxXW86k43z1gyewPQkbEtLMOnT8QqanzuWz0n9g+w1n9XksVblY B6eFcYyceHVfY0Rr2YhO/ins2CHuuBu4OKQELg6u8xFxBhtpfTCr8LfOiw0E1fEz/Ew== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1794441268; h=DMARC-Filter:DKIM-Signature:X-SMAIL-HELO:Received:X-Sender:X-Auth-ID: X-SMAIL-MID:X-SMAIL-UIID:From:To:Cc:Subject:Date:Message-ID: In-Reply-To:References:MIME-Version:Content-Transfer-Encoding; bh=UyAJ5kJwvbBsuuagMuqH0uqvCIRf2LNOJbAvJkGPWDc=; b=Ppm9mdvsAm3i0b7YOVhDh9DzZIUO+iUoAwZAQ57AsU/Yj5wd/mY3wEoo3mticucdp/8W NMeMjmH3TPmz8UtBwY3X94ZMa44YA+s7AGcvo+6LOCBcmp/MDr2gthE4FYJCryVoSokJl e0tO4pU1Kj8TvvZBqIWa0komkFtW5s7g1MoHfyyIG0/c2fSK08YmA+e1pZxzyvkIgyPyx xFv5L1U2fAqbxX9dzWmWHLPJGixMmYWEpx6pNSRupjodPt4djJUVqgDsMyGRtrn5R0Rkl NvlLiNL1xWvRmgafDeOImjWjEaAgIB/jk7m78ab7qIZ+Y7Yg9h9x1FfOehn2SsaKgNA== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass header.from=sina.com; spf=pass smtp.mailfrom=sina.com; dkim=pass header.d=sina.com header.i=@sina.com header.a=rsa-sha256 header.s=201208 header.b=sDJmPVy6; arc=none smtp.remote-ip=202.108.3.24 Received: from r3-24.sinamail.sina.com.cn (r3-24.sinamail.sina.com.cn [202.108.3.24]) (using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 6A2AB606A31C for ; Wed, 11 Nov 2026 23:54:25 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org 6A2AB606A31C Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=sina.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=sina.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key, unprotected) header.d=sina.com header.i=@sina.com header.a=rsa-sha256 header.s=201208 header.b=sDJmPVy6 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sina.com; s=201208; t=1794441266; bh=UyAJ5kJwvbBsuuagMuqH0uqvCIRf2LNOJbAvJkGPWDc=; h=From:Subject:Date:Message-ID; b=sDJmPVy62FuW8Te+t8W2UY0uxr+qHpgTE8lf9E8hrtoaXmvtMfvx3PiQxy4vRFSWq whTjN581i8mWI6x6Kmsx5MGnjJTZRr/Mf/5HgPCYNof5Rcwuf4vYNz4uY7p73BF1ay y2GKzVAdQ9kzZ88wSkjuLgHIG3WuB8tv44QR19no= X-SMAIL-HELO: localhost.localdomain Received: from unknown (HELO localhost.localdomain)([114.246.239.105]) by sina.com (10.54.253.31) with ESMTP id 6AF50025000001B3; Wed, 12 Nov 2026 07:54:16 +0800 (CST) X-Sender: hdanton@sina.com X-Auth-ID: hdanton@sina.com Authentication-Results: sina.com; spf=none smtp.mailfrom=hdanton@sina.com; dkim=none header.i=none; dmarc=none action=none header.from=hdanton@sina.com X-SMAIL-MID: 9846096815980 X-SMAIL-UIID: A440C302B0374BF9BF0CDE3F682F057D-20261112-075416-1 From: Hillf Danton To: syzbot Cc: linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Subject: Re: [syzbot] [bluetooth?] WARNING in disable_delayed_work_sync Date: Thu, 12 Nov 2026 07:54:02 +0800 Message-ID: <20261111235403.447-1-hdanton@sina.com> In-Reply-To: <6af2d48b.4dd4714a.f8d02.0024.GAE@google.com> References: X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit > Date: Tue, 10 Nov 2026 00:23:39 -0800 [thread overview] > Hello, > > syzbot found the following issue on: > > HEAD commit: 58c1eb84e977 arm64: sdei: Preserve the interrupted context.. > git tree: git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci > console output: https://syzkaller.appspot.com/x/log.txt?x=1070f24e580000 > kernel config: https://syzkaller.appspot.com/x/.config?x=a58b6b4d667e7a61 > dashboard link: https://syzkaller.appspot.com/bug?extid=b1146b58a9d6d90e0eb4 > compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 > userspace arch: arm64 > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=12869155580000 #syz test: upstream master --- x/net/bluetooth/hci_conn.c +++ y/net/bluetooth/hci_conn.c @@ -1151,6 +1151,7 @@ static struct hci_conn *__hci_conn_add(s } hci_conn_init_sysfs(conn); + hci_conn_get(conn); return conn; } @@ -1316,6 +1317,7 @@ void hci_conn_del(struct hci_conn *conn) * rest of hci_conn_del. */ hci_conn_cleanup(conn); + hci_conn_put(conn); /* Dequeue callbacks using connection pointer as data */ hci_cmd_sync_dequeue(hdev, NULL, conn, NULL); --